Roofing member with marginal ridges



'May 23, 1933'. c sc 1,911,141

ROOFING MEMBER WITH MARGINAL RIDG'ES Original Filed July 17, 1920Patented May 23, 1933 UNITED STATES PATENT OFFICE ALBERT G. FISCHER OFCHICAGO, ILLDTOIS, ABSIGNOB TO THE rm cm! IANUI'A-UIUBIHG comm, ACORPORATION 03 OHIO Application fled. July 17, 1980, Serial lo. 896,Renewed April 80, 1987.

The resent invention relates to roofing materia s produced in the formofroofing members which, for the sake of economizmg in material, makespecial rovision for weather-proofing along the 'nes of their overlap,so that the extent of lapping can be greatly reduced and a cat saving nmaterial can be efiected. ile not limited in its application, theinvention is particularly appropriate to roofing materials offibrouscomposition metal or other sheet form.

One feature of the invention consists in forming along the marginalportions of the roofin members, ribs, ridges, flanges, or the like, 0which those occup ing the portion of the roofin member whic is coveredup in the assem ly of the roofin member project upwardly, while thosecarried by the weathering or exposed portion of the roofing memberextend downwardly so that thee ements will be prevented from passing theoverlapped members even though the extent of overlap ing be reducedmerely to the combined thickness of the interlocking ribs or ll thelike.

Another feature of the invention consists in utilizing the lappedportions of the roofing members in one row as the trough or weatheringsurface of the space between the so weathering members of the nextsucceeding row, so that the overlapping portion of one member in onerow, with its down-turned ridges, bridges the space between thetroughforming portions of the members of the next lower row and afeature collateral to this part of the invention consists in making eachmember with a relatively wide and a relatively narrow portion, with thecorresponding rtions of the several members symmetrical, and with thewide ortions of the members com lementary to t e narrow ortions, so thatlanks for the roofing mem rs can be cut from a continuous strip ofmaterial without substantial waste.

' Further features of the invention relate to details through which theabove-mentioned general features and various modifications thereof maybe realized.

In the accompanying drawing- Figure 1 represents one form of roofingmember embodying the subject-matter of the present invention; Figure 1ashows the method of assembling a plurality of such members; and Fifgures2 and 3 are, respectively, the blank rom which it is made, and 66 astrip of material from which such blank may be out without waste.

igure 4 is a modification of the member shown in Figure 1, according towhich several members are formed integrally with a 00 connecting strip.7

Figure 5 represents a'method of cutting from a continuous strip the formof roofing member shown in Figure 4.

Figures 6 and 7 represent two com lemeno5 tar roofing elements cut froma sin e piece, an each embodying a series of ta s or design producingportions projecting integrally from a continuous carrying strip of suchwidth that the continuous portion of eachdo roofing member will providean underlay for the ta s of the next succeeding member.

Figure :8 shows a method of assembling the members shown in Figures 6and 7.

Referring to Figure 1, 1 represents the overlapping and 2 the underlaping portion of a roofing member, a plura ity of which, when constructedaccordin to the present invention, are to be assem led u on a roofsomewhat upon the (principle 0 shingling. In order that the rec gmembers may overlap to a minimum extent and still efi'ect weatherproofjoints between the several members, they are provided with ribs, rid es,flanges, or the like, hereinafter refe to 06 as ribs, projecting fromthe plane of the member, and of w ich those ribs 3 which project fromthe overlapping portion of the member extend downwardly, while thosewhich are upon the underlapp' g dportion of the member are presentedupwar so that the downwardly rojectin ribs on one member may interlocwith t e upwardly rojecting ribs on an adjacent member, an as stated,the joint between two such members will be weather roofed, and inaddition said members will vprevented from drawing apart..

As will be seen in Figure 1a, when a-plurality of the members shown inFigure 1 "are substantially identical so that the two ends of eachoverlapping portion of one row may dip into the spaced troughs of theunderlapped portions of the next lower row. By this method ofinterengagement, the interlock is develo ed both longitudinally andtransversely of the roofing member.-

Roofing members of the form shown in Figures 1 and 1a may be' made fromthe blank 5 (Figure 2), and these blanks may be cut from a single stripwithout waste, as suggested in Fi ure 3.

As. suggested in igures 4 and 5, one longitudinal half of the stripshown in Figure 3 can be left uncut, so that some of the blanks 5 willbe left attached to a continuous strip 2', and the roofing member willdevelop as shown in Figure 4 with a series of tabs 1, 2, having the ribs3, 4, but omitting the topmost rib that is emplo ed in Figure 1, andinstead, using the meta at that point to connect the tabs to the stri2'.

In Figures 6 and 7, t e overlapping portion 1 is provided with a deending Mb 3 onl at its lower transverse e ge, while the un erlappingportion 2 is a continuous strip from which the portions 1 project in theform of spaced tabs; and this continuous-stri underlapping portion 2 isprovided with transverse upwardly presented ribs 4 only to the extent ofthe spaces between the tabs.

A pluralit of forms such as shown in Figures 6 and will assemble asindicated in Fi re 8.

claim: a

1. Sheet roofing material comprising units adapted to be laid in rowswith the units of an upper row overlapping those of a lower row; saidunits having interlocking ribs on overlapping portions thereof; thoseribs on an over apping portion of the unit being resented downwardly,and those on an un erlapping portion thereof bein presented upwardly;the units of a row being united with a connecting strip which determinestheir spacing and their presentation upon the roof,

and hem connected with their strips through means 0 ofisets whichprovide shoulders through which to efiect interlock with th units of alapping row.

2. Sheet roofing material comprising units adapted to be laid in rowswith the units of an upper row overlapping those of a lower row; saidunits having interlocking ribs on an over at ri overlaplping portionsthereof; those ribs on apping portion of the unit being resenteddownwardly, and those on an un erlapping portion thereof being presentedupwardly; said units comprising relatively wide and narrow portions andhaving connectin strips with whichthey are unlted through thelr narrowportions, and their narrow portions being complementary to their wideportions in a continuous area so that the units may be cut from acontinuous strip without waste.

3. Roofing members, each comprisin a plurality of units constructed eachwit a wide portion and a narrow portion projecting therefrom and leavinofi'sets laterally beyond the narrow portions, interlocking flangesformed on the margins of the narrow portions and upon adjacent marginsof the offsets and proLecting in one direction from the plane of t eumt, interlockin flan es formed-on the remainin margins o the wideportions projectin in t e opposite direction from the plane 0 the unit,and basemembers connecting a plurality of units together, by means oftheir narrow portions, an spacing the units apart in a row with thedistancebetweentheir narrow portions corresponding'substantially to thewidth of the wide portions; said members bemg adapted to be laid insuperposed rows with the wide ortions of units in one row closing thespaces tween thenarrow ortions bf the units in an adjacent row aninterlocking with the margins of units of said ad aoent row which definesaid s aces. 1

4. Shape roofin units out from sheet material, and adapte to be laid inrows w th portions of the units in one row overlapping portions of unitsin an antecedent row, said units having interlocking on lapping portionsthereof, and the indlvidual units having outlines defining their shapewhich render them different at their two ends; the desi at one end beingcom lementary to the i sign of the opposite en so that a series of unitsalternately in reversed positions will correspond substantially to thecomplete area of the sheet material from which the units are cut.

'5. A flexible shingle conlrprismg a strip of material having spacedshaped out-outs formed in one edge of the strip, said havin a marginaflangebent substantial y t an les therefrom, said shingle havm anges ofsaid cut-outs.

6. Roofing units, eachconstructed with .a relatively wlde portion and arelatively narrow-portion projecting from said wide portion and leavingthe wide portion ofl'set laterally from the narrow portion; said unitsbeing adapted forapplieation to a roof in rows and with the wideportions of the umts of one row lapped with the narrow portions nttherefrom along the margin of the units of an adjacent row, and alsoupon margins of the ofisets of the wide portions, a wide portion beingproportioned to bridge the space between two adjacent narrow portionswith which it laps; the lapping of the units being provided with flangesthrough which they interlock. v

Signed at Chicago, Illinois, this 14th day of July, 1920.

ALBERT C. FISCHER.

